RAPID-TRANSPORT OF PROTONS ACROSS MEMBRANES BY ALIPHATIC-AMINES AND ACIDS

被引：16

作者：

SRIVASTAVA, A ^{[1
]}

SINGH, S ^{[1
]}

KRISHNAMOORTHY, G ^{[1
]}

机构：

[1] TATA INST FUNDAMENTAL RES, CHEM PHYS GRP, BOMBAY 400005, MAHARASHTRA, INDIA

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1995年 / 99卷 / 29期

关键词：

D O I：

10.1021/j100029a002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The pH gradient generated across membranes can be dissipated efficiently by means of a single-turnover cycle of aliphatic amines and acids present in the membrane. The kinetics of this single-turnover process was in the submillisecond time scale and was measured by creating pH gradients (Delta pH) using a temperature jump. The observed Delta pH decay process was identified as due to rapid transmembrane movement of the neutral form of either the acid or the amine. The rate constant was estimated to be in the range (1-6) x 10(3) s(-1) in the case of aliphatic amines.

引用

页码：11302 / 11305

页数：4